Canon EF 17-40mm f/4L USM Lens Specifications and Measurements

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SpecificationsCanon EF 17-40mm f/4L USM Lens
  Canon EF 17-40mm f/4L USM Lens
Mounts On Full Frame, APS-C
Lenses / Groups 12/9
Angle of View: Diagonal 104° - 57° 30'
Angle of View: Horizontal
Angle of View: Vertical
Aperture Range - Wide / Long f/4.0-22
Number of Aperture Blades 7
Rounded Aperture?
Manufacturer Specification Weight 475g
Actual Weight 470g
Lens Hood Weight 35g
In-Use Weight 505g
Manufacturer Spec Size (DxL) 84 x 97mm
Measured Size (DxL) 83.4 x 104mm
Max Length at Full Extension 104mm
Internal Zoom? / Extends with Zoom? Y / N
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 108.4 x 45.6mm
Lens Length with Hood (Min / Max) 145 / 145mm
Size of Rings - Zoom / Focus 20.2mm / 21.9mm
Filter Size 77mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type Ring USM
Full Time Manual Focus Y
Focus Ring Rotation 95°
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type Y / Window
Close Focus  
Specified Min Focus Distance 280mm
Tested Min Focus Distance (Wide / Long) 267mm / 268mm
Maximum Magnification (MM) 0.25x
Magnification Range with 12mm Ext Tube 0.83-0.32x
Magnification Range with 25mm Ext Tube 1.02-0.4x
Zoom Ring Rotation 53°
Tripod Ring Included? / Removable? N
Zoom Ring Lock Switch? N
Lens Hood Included / Model? Y / EW-83E Buy ►
Weather Sealed? / Filter Required? Y / Y
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? Y / LP1319 Buy ►
1200mm x 800mm Subject Framing Distance 17mm = 668mm
20mm = 756mm
24mm = 916mm
28mm = 1072mm
35mm = 1315mm
40mm = 1441mm
17mm = 1018mm
20mm = 1154mm
24mm = 1391mm
28mm = 1613mm
35mm = 2021mm
40mm = 2217mm
Year Introduced 2003
Review Canon EF 17-40mm f/4L USM Lens
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My Recommended Retailers

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B&H Photo
Beach Camera or
the Canon Store (new or refurbished)
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Rent the Canon EF 17-40mm f/4L USM Lens

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